socket_write Write to a socket &reftitle.description; intfalsesocket_write Socketsocket stringdata intnulllength&null; The function socket_write writes to the socket from the given data. &reftitle.parameters; socket data The buffer to be written. length The optional parameter length can specify an alternate length of bytes written to the socket. If this length is greater than data's length, it is silently truncated to the length of data. &reftitle.returnvalues; Returns the number of bytes successfully written to the socket&return.falseforfailure;. The error code can be retrieved with socket_last_error. This code may be passed to socket_strerror to get a textual explanation of the error. It is perfectly valid for socket_write to return zero which means no bytes have been written. Be sure to use the === operator to check for &false; in case of an error. &reftitle.changelog; &Version; &Description; &sockets.changelog.socket-param; 8.0.0 length is nullable now. &reftitle.notes; socket_write does not necessarily write all bytes from data. It's valid that, depending on the network buffers etc., only a certain amount of data, even one byte, is written despite data being longer. A loop must be used to ensure that the rest of data is transmitted. &reftitle.seealso; socket_accept socket_bind socket_connect socket_listen socket_read socket_strerror